1. Type "about:config" into the address bar and hit return. Scroll
down and look for the following entries:
network.http.pipelining
network.http.proxy.pipelining
network.http.pipelining.maxrequests
Normally the browser will make one request to a web page at a time.
When you enable pipelining it will make several at once, which really
speeds up page loading.

2. Alter the entries as follows:
Set "network.http.pipelining" to "true"
Set "network.http.proxy.pipelining" to "true"
Set "network.http.pipelining.maxrequests" to some number like 30. This
means it will make 30 requests at once.

3. Lastly right-click anywhere and select New-> Integer.
Name it "nglayout.initialpaint.delay" and set its value to "0".
This value is the amount of time the browser waits before it acts on information it
recieves.
If you're using a broadband connection you'll load pages 2-30 times faster now.